Nikola Tesla - Free-Energy Devices

TlIK IIMO-MAGNETISM AND PYRO MAGNKTIHM. 4-25body in tlie opposite direction, and again subject the same to thedemagnetizing power of the heat.Use is made of either an electro-magnet or a permanent magnet,and the heat is directed against a body that is magnetizedby induction, rather than directly against a permanent magnet,thereby avoiding the loss of magnetism that might result in thepermanent magnet by the action of heat. Mr. Tesla also providesfor lessening the volume of the heat or for intercepting the sameduring that portion of the reciprocation in which the coolingaction takes place.In the diagrams are shown some of the numerous arrangementsthat may be made use of in carrying out this idea. In allof these figures the magnet-poles are marked N s,the armatureA, the Bunsen burner or other source of heat H, the axis of mo-FIG. 232. FIG. 231. FIG. 233.tion M, and the spring or the equivalentthereof namely, aweightis marked w.In Fig. 281 the permanent magnet N is connected with a frame,F, supporting the axis M, from which the arm P hangs, and at thelower end of which the armature A is supported. The stops 2limit the extent of motion, and the spring w tends to drawand :-Jthe armature A away from the magnet N.It will now be understoodthat the magnetism of > is sufficient to overcome thespring w and draw the armature A toward the magnetN. Theheat acting upon the armature A neutralizes its induced magnetismsufficiently for the springw to draw the armature A awayfrom the magnet M and also from the heat at ir. The armaturenow cools, and the attraction of the magnet N overcomes thespring w and draws the armature A back again above the burm-i-